Function getDiscardHelpers

Returns {
    isAllDiscarded: (
        suitIndex: 0 | 1 | 2 | 3 | 4 | 5,
        rank: 1 | 2 | 3 | 4 | 5 | 7,
    ) => boolean;
    isLastCopy: (
        suitIndex: 0 | 1 | 2 | 3 | 4 | 5,
        rank: 1 | 2 | 3 | 4 | 5 | 7,
    ) => boolean;
}